Mold for making musical instruments



G. BOND].

MOLD FOR MAKING MUSICAL INSTRUMENTS.

. APP4LICATIION FILED SEPT, 29, 1919.

2 SHEETS-SHEET I.

3 Guido Bo'ndi witness Gv BON-Dl.

MOLD FOR MAKING MUSICAL lNSTRUMENTS.

APPLICATION FILED SEPT. 29. l9l9.

Patented Feb. 22, 1921.

2 SHEETSSHEET Z- sumo BONDI, or DAYTON, KENTUCKY.

um ron'msxme MUSICAL INSTRUMENTS.

Specification of Letters Patent.

Patented Feb. 22, 1921.

Application filed September 29, 1919. Serial No. 327,098.

To all whom it may concern Be it known that I, GUIDo .BONDI, a citizen of the UnitedStates. residing at Dayton, in

the county of Campbell and State of Ken tucky, have invented new and useful Improvementsin Molds for Making Musical Instruments, of which the following is a speci fication. I

This invention relates to musical instruments, particularly" to those of the wind actuated type, and has for its object the provision of a novel form of musical in strument and peculiarly constructed mold members for forming the same from plastic material.

\Vith the above and other objects and advantages in view, the invention consists in the details of construction to be hereinafter more fully described and claimed, and illustrated in the accompanying drawings in whichi Figure 1 is a plan view of the mold members disconnected,

Fig. 2 is a perspective view of one of the inner mold members,

Fig. 3 is a perspective view of the other inner mold member,

Fig. 4 is a cross sectional view through the outer mold members with the plastic material therein and the inner mold members in position, i

Fig. 5 is asimilar view with the inner mold members removed and the outer. mold members assembled, I

Fig. 6 is a longitudinal sectional view therethrough,

Fig. 7 is an elevation of one side of the completed instrument, and

Fig. 8 is an elevation of the opposite side.

Referring more particularly to the drawings, the numerals 10 and 11 designate the outer mold members which may be formed 1 of any suitable material such as plaster of Paris and which are so formed as to mate, one member carrying pro ect1ons 12 and the other having recesses 13 conformingly receiving the projections. These mold members 10 and 11 are hollowed out or recessed, as shown at 14 and 15, respectively, to give the proper shape to the instrument to be molded and these recesses 14 and 15 have communicating therewith smaller laterally extending recesses 16 and 17, respectively.

The numeral 18 designates one inner mold member which is formed of suitable material such as metal and which is adapted for disposition within the mold member 10. This member 18 is formed as an elongated body having substantially the same contour as the hollow 14 in the mold 10 and has formed thereon a plurality of projections 19, for a purpose to be described. This 8 member 18 is also provided with ring 20 serving as a handle. The numeral 21 designates the other inner mold member of sub stantially the same contour as the hollow 15 in the mold member 11 and is provided with a plurality of projections 22 and also with a handle 23.

In the use of the device, plastic material, such as clay or the like is placed within the hollow 14 in the mold 10 and the mem ber 18. is then placed within the mold and pressed firmlydownwardly until the projections 19 thereon pass entirely through the'plastic material A and engage against the inner wall of the mold. The surplus material which squeezes up beyond the top of the mold member is then scraped off to be flush. Plastic material B is then placed in the mold member 11 and the inner mold member 21 is pressed thereinto in the same manner until the projections 22 pass through the material and engage the inner wall of the mold. The inner mold members 18 and 21 are then removed and the mold members 10 and 11 are then superposed and pressed firmlv together to unite the edges of the plasticmaterial. After the device has stood a suflicient length of time for the plastic material to become set. the mold members 10 and 11 are separated and the instrument-C removed.

The instrument C will then be found to consist of a hollow body 24 of substantially torpedo shape and having a laterally extending mouth piece 25. The body will have extending through one side therem a plurality of holes 26 of different sizes formed by the projections 19 on the inner mold member 18 and upon its other side the body will have a plurality of holes 27 formed by the projections 22 on the mold member 21. The holes 26 are adapted to be covered by the fingers of the operator and the holes 27 are a dapted. to be covered by the thumbs. It is preferable that the entire instrument be painted and it may also be advisable to have numerals and note indicia inscribed. upon its surface adjacent the holes 26 and 27, The mouth piece 25 has formed therein a passage 28 which is very small and which extends into the interior of the body 2-]: and this passage 1s termed preterably by inserting a suitable shaped strip o'l material in the lateral recesses 16 and 17 in the mold! members 10 and 11 after the plastic material is disposed therein.

The instrument is played by blowing through the mouth piece and manipulat; ing the fingers and thumbs to uncover the desired ones of the holes 26 and 27.

From the foregoing description and a study of the drawings it will be apparent that l have thus provided a ver simple mold device for forming a musical instrument in a very simple and eiticient manner so that the cost otprodiui-tion ot' the instrir ment will be slight.

\Yhile l have shown and described the preferred embodiment of my invention it is of course to be understood that I reserve the right to make such changes in the term. constructioin and arrangement of parts as will not depart from the spirit of the in vention or the scope of the subjoined claim.

Having thus described my invention, I claim A musical instrument mold comprising a pair 01"" mating outer mold members each formed with an elongated hollowed out portion anda lateral recess communicating therewith, said mold members being adapted to be filled with plastic materiah inner mold members each formed as an elongated body having formed thereon a plurality of projections adapted to be pressed through the plastic material in the outer mold mem bers whereby toprovide holes through the plastic material, said outer mold members being adapted to be superposed subsequent to the removal of said inner mold members whereby to unite the edges ot' the plastic material the edges of the mold members be ing formed with mating conical projections and recesses and being tormed at their ends with transverse mating projectionsand recesses, and one mold member being formed with a hole at the base of the lateral recess permitting the insertion oi? a strip into the molded material wherebv to form an opening therein" the strip being subsequently removed. r r

In testimon whereot l allix my signature.

GUIDO BONDI. 

